Deep Dive: G7A12
The correct answer is C: Symbol 6. The symbol in figure G7-1 that represents a solid core transformer is Symbol 6. Solid core transformer symbols show two coils with solid lines between them, indicating a magnetic core. For amateur radio operators, this is important for reading circuit diagrams. Understanding this helps when working with transformer circuits.
Why Other Answers Are Wrong
Option A (Symbol 4): Incorrect. Symbol 4 represents a different component - likely a regular diode or other device, not a transformer. Transformers have distinct symbols. Option B (Symbol 7): Incorrect. Symbol 7 represents a tapped inductor, not a solid core transformer. Tapped inductors and transformers have different symbols. Option D (Symbol 1): Incorrect. Symbol 1 represents a FET, not a transformer. FETs and transformers have different symbols.
Exam Tip
Solid core transformer symbol = Symbol 6. Think 'S'olid 'C'ore 'T'ransformer = 'S'ymbol '6'. Solid core transformer symbols show two coils with solid lines between them. Not Symbol 1 (FET), not Symbol 4, not Symbol 7 (tapped inductor) - just Symbol 6.
Memory Aid
Solid core transformer symbol = Symbol 6. Think 'S'olid 'C'ore = 'S'ymbol '6'. Solid core transformer symbols show two coils with solid lines between them. Standard transformer symbol representation.
Real-World Example
You read a circuit diagram. Symbol 6 shows a solid core transformer with two coils and solid lines between them, indicating a magnetic core. This is the standard symbol for solid core transformers, distinguishing them from air-core transformers. This is how solid core transformers are represented.
Source & Coverage
Question Pool: 2023-2027 Question Pool
Subelement: G7A
Reference: 2023-2027 Question Pool · G7 - Practical Circuits
Key Concepts
Official Pool Source
Question text and answer key are synchronized with the current NCVEC General Class pool and mapped to the G7A topic.
